If you plan on ending up in the Stellenbosch area just be forewarned that the old boys aeroclub is not particularly fond of helicopters and they were actually banned for a while. Now that Working on Fire is based there, the helis are allowed again, but lots of noise abatement regs, rules etc. Nothing you cannot work out I am sure. The demand for any R44 lease will in all liklihood come from any of the companys at the Cape Town Waterfront or at FACT proper.
I flew with Frank H-P a while back and he's brilliant.
There were shortages of Avgas but they have been replenished.